header {
  width: 100%;
  min-width: 72%;
  height: 70px;
  line-height: 70px;
  background: #1c1b1b;
  color: #ffffff;
}
header .logoBox {
  width: 25%;
  float: left;
}
header .logoBox #logo {
  float: right;
  margin-top: 15px;
  margin-right: 20px;
}
header .headerListBox {
  width: 50%;
  float: left;
}
header .headerListBox .headerList {
  width: 100%;
  float: left;
}
header .headerListBox .headerList li {
  float: left;
  margin-left: 5%;
  height: 48px;
  position: relative;
}
header .headerListBox .headerList li a {
  color: #ffffff;
  font-size: 14px;
}
header .headerListBox .headerList .liHit {
  color: #ffb100;
}
header .headerListBox .headerList .bottomBorder:hover {
  border-bottom: 2px solid #fec33c;
}
header .headerListBox .headerList .bottomBorder:hover a {
  color: #fec33c;
}
header .headerListBox .headerList .slideMenu {
  position: relative;
  height: 70px;
}
header .headerListBox .headerList .slideMenu .angleTri {
  position: absolute;
  width: 8px;
  top: 35px;
  right: -6px;
}
header .headerListBox .headerList .slideMenu a {
  margin-right: 4px;
}
header .headerListBox .headerList .slideMenu img {
  visibility: hidden;
}
header .headerListBox .headerList .slideMenu .ckxtUl {
  position: absolute;
  color: #ffffff;
  z-index: 10;
  width: 120px;
  left: -20px;
  top: 52px;
  display: none;
}
header .headerListBox .headerList .slideMenu .ckxtUl li {
  height: 20px;
  background: #ffffff;
  line-height: 20px;
  color: #000000;
  padding: 5px 15px;
  font-size: 12px;
  cursor: pointer;
}
header .headerListBox .headerList .slideMenu .ckxtUl li a {
  color: #000000;
}
header .headerListBox .headerList .slideMenu .ckxtUl .addjust {
  padding: 5px 16px;
}
header .headerListBox .headerList .slideMenu .ckxtUl li:hover {
  background: #f8f8f8;
  color: #666666;
}
header .headerListBox .headerList .slideMenu:hover a {
  color: #fec33c;
}
header .headerListBox .headerList .slideMenu:hover img {
  visibility: visible;
}
header .headerListBox .headerList .slideMenu:hover .ckxtUl {
  display: block;
}
header .aboutBox {
  width: 25%;
  float: left;
}
header .aboutBox .aboutList .anoutUsLi {
  float: left;
  height: 70px;
  margin-left: 4%;
  position: relative;
}
header .aboutBox .aboutList .anoutUsLi .ckxtUl {
  position: absolute;
  color: #ffffff;
  z-index: 10;
  width: 100px;
  left: -24px;
  top: 52px;
  display: none;
}
header .aboutBox .aboutList .anoutUsLi .ckxtUl li {
  height: 20px;
  background: #ffffff;
  line-height: 20px;
  color: #000000;
  padding: 5px 15px;
  text-align: center;
  font-size: 12px;
  cursor: pointer;
}
header .aboutBox .aboutList .anoutUsLi .ckxtUl li a {
  color: #000000;
}
header .aboutBox .aboutList .anoutUsLi .ckxtUl li:hover {
  background: #f8f8f8;
  color: #666666;
}
header .aboutBox .aboutList a {
  color: #a1a1a1;
  font-size: 12px;
}
header .aboutBox .aboutList .anoutUsLi:hover a {
  color: #fec33c;
}
header .aboutBox .aboutList .anoutUsLi:hover .ckxtUl {
  display: block;
}

.session {
  margin: 50px auto 0;
  width: 1000px;
  height: 800px;
}
.chunk-1 {
  display: flex;
}
.logo {
  width: 100px;
}
.text-box {
  margin-left: 20px;
}
.title {
  margin-bottom: 5px;
  font-size: 20px;
}
.chunk-2 {
  margin-top: 20px;
}
.btn {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 120px;
  height: 40px;
  border-radius: 20px;
  background-color: #fec33c;
}
.btn a {
  color: #666;
}
.chunk-3 {
  margin-top: 20px;
}
.img-box {
  display: flex;
  justify-content: space-between;
  margin-top: 20px;
  padding: 20px;
}
.img-box img {
  width: 200px;
}
.chunk-4{
  margin-top: 20px;
}